7857434055 has 16 divisors (see below), whose sum is σ = 12573112320. Its totient is φ = 4190225568.

The previous prime is 7857434047. The next prime is 7857434083. The reversal of 7857434055 is 5504347587.

It is not a de Polignac number, because 7857434055 - 2³ = 7857434047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7857433995 and 7857434013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198186 + ... + 234504.

It is an arithmetic number, because the mean of its divisors is an integer number (785819520).

Almost surely, 2^7857434055 is an apocalyptic number.

7857434055 is a deficient number, since it is larger than the sum of its proper divisors (4715678265).

7857434055 is a wasteful number, since it uses less digits than its factorization.

7857434055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50750.

The product of its (nonzero) digits is 2352000, while the sum is 48.

The square root of 7857434055 is about 88642.1686050155. The cubic root of 7857434055 is about 1988.0482243840.

The spelling of 7857434055 in words is "seven billion, eight hundred fifty-seven million, four hundred thirty-four thousand, fifty-five".